1228459 has 2 divisors, whose sum is σ = 1228460. Its totient is φ = 1228458.

The previous prime is 1228457. The next prime is 1228489. The reversal of 1228459 is 9548221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1228459 - 2¹ = 1228457 is a prime.

It is a super-2 number, since 2×1228459² = 3018223029362, which contains 22 as substring.

Together with 1228457, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1228459.

It is not a weakly prime, because it can be changed into another prime (1228457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 614229 + 614230.

It is an arithmetic number, because the mean of its divisors is an integer number (614230).

2^1228459 is an apocalyptic number.

1228459 is a deficient number, since it is larger than the sum of its proper divisors (1).

1228459 is an equidigital number, since it uses as much as digits as its factorization.

1228459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 31.

The square root of 1228459 is about 1108.3586964516. The cubic root of 1228459 is about 107.0993632564.

The spelling of 1228459 in words is "one million, two hundred twenty-eight thousand, four hundred fifty-nine".